On Fri, Jun 08, 2007 at 05:02:24PM +0900, Tejun Heo wrote:
> I don't think the first one is probable considering BSY is supposed to
> set when SRST is received. This is pretty fundamental in the protocol
> and necessary for the device to work properly as master, so I think this
> is one of few things we can rely upon.
See a URL I posted earlier in this thread. With dumb ATAPI devices we
actually have to wait a bit for BSY to be asserted. Not only at reset,
but also for every command.
> How about limiting nsect/lbal wait duration? Say, 100ms or 500ms? That
> can somewhat ease our paranoia and should show acceptable behavior for
> braindead devices too.
That's quite reasonable.
Jeff
P.S. We can probably reduce the msleep(150) sprinkled about the code to
msleep(100), for the dumb-ATAPI-device wait.
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